 Hi there, welcome back to my YouTube channel. This is Daniel Rosal here. So I've just finished upgrading my home network for backup internet on 4g cellular Network, so I'm really really excited about this. I have been having for a long time sort of problems with getting good internet connectivity We're in based I'll be it in Jerusalem the the capital of the high tech nation started nation So I did a video about 10 days ago in which I explained how to set up One of TP links for G routers. That's the TLM or 100 mostly I do I really regret not getting a router now with multiple LAN ports because I ended up not using it with a load balancing router and Instead just connecting this into my connecting my my ISP router Into this router and now because I didn't have more enough LAN ports LAN ports I had to put a switch on to that as well. So that probably could have been avoided, but I'll have the load balancing router for my next backup internet project. So I'm just going to explain basically what I've done and Why you might want to do this and how to do this if you have the TP link one of the TP links for one of the TP link 4g routers or cellular routers because they should work more or less the same now There are other ways to achieve 4g Cellular backup now it depends who you get your internet from for instance with my provider They do have there is a USB slot on the On the router they give you and you can put in a dongle there a 4g dongle and that should work I personally will always want and always wanted to own my own hardware not to have to rely upon the Hardware that my ISP gives me and I am kind of stuck with using their router because they don't really provide support without it So I'm kind of tied in that respect, but I wanted to build everything everything else in my network without using the Hardware from them. So I'm I just did up a schematic and I'm just going to bring this guy over and you can see What I've done here. So I have an ISP router and What I've done is this this was this was the second network design So let me actually just show you firstly. This is what I've called dream network So this is what I was planning and doing at first. I was going to have a ford this 4g router from TP link alongside a ISP router and then putting that into a load balancing router. You can also get one made by TP link and then and then connecting my Internet devices my computer my NAS and also Potentially putting a router on the end of that load balancer to get Wi-Fi Throughout the throughout the house now that was kind of an elaborate setup admittedly and it was going to involve one two three four Riders, which was kind of a lot of routers in a home So this is just kind of a little bit pared down the one that I currently have going but it's It's a simpler configuration. So if you want to do this you're only need you're only going to need to pick up One additional router. So that's Two routers are going to be in the house ISP and TP link, but two is obviously less than four So it's a little bit simpler to configure. So what I've done here is I have put the ISP router into the TP link Into its one port and I'm going to show the Settings you need to change if you want to use your TP link cellular router in this manner and then that That will I'm have turned off the Wi-Fi network on my ISP router and I'm using now the Wi-Fi network. That's going to be the Wi-Fi network for my house I don't use Wi-Fi for the most part, but my wife does so it was important that there was a Wi-Fi network That was up and usable And I'm going to be connecting through the ethernet through this stuff down here, but So the TP link is going to do backup and I'll just show in the screenshots what to do And that means that in the first instance, it's going to use the connection from the ISP. So your DSL whatever your ISP is That's going to be the primary connectivity and the TP link router will switch over to cellular Only as a backup. So it's basically kind of Flipping this router on its head instead of making this router a 4g router it's making it a backup router essentially and It's really handy that that can be changed pretty easily now the default change over when you go into wireless mode is not 4g backup. I believe it's going to be The other way around 4g primary and ISP backup. So I needed to also change one more setting there So two setting changes and now everything's hooked up. So this Wi-Fi network instead of being a Wi-Fi network just from the ISP It's a Wi-Fi network that Has fallback or backup internet built into it It's going to be prior primarily the and a Wi-Fi network created from the ISP connectivity But in the event that that drops it's going to switch over to cellular kind of cellular based connectivity And then the rest of the network is going out through so the TP The TL-MR100 is a pretty it's kind of the most basic device that they have and it's got a It's just got a sorry just done something here It's just got one one port and one LAN port. So that's the one port take one port taken up by the ISP I'm one LAN port and as I said, I should have probably gone for a higher end TP link router So I've put a switch here and then the switch is Powering a couple of things in my office and then a second switch is going to be doing the NAS and my home media center So that is the network architecture that I have rigged up over here And now let me show you how that actually looks in In real in in real life. It's not quite as It's not quite as a need and glamorous as that makes it look so on the bottom You have here my ISP router now. I've actually since moved this about this was When I was setting it up. So I have done some cable management since and Optimized things what this is the one on the bottom is a router from the ISP The on the bottom left that gray cable is the RJ 11. So that's the input for the router This cable were that I've labeled LAN to one so I'm running a LAN cable out of the ISP router into the one port on the TP link and And and that's basically it and then you've got the SIM card sitting in the SIM card tray with the antennas and The LAN port is that's going off to a switch now That's I've actually kind of changed this the 4g router is now in another room and the router is It's been brought back into my home office, but basically the networking is the same So that is how it looks rigged up as such Now I wanted to show you guys what you're going to need to change in the In the in the TP link admin console So the first thing is you're going to need to change the router mode into You're gonna need to change the operation mode so log into your TP link and click on advanced up the top and Then you have one setting called operation mode and this is the setting that will turn the router on its head essentially and I've gone from 3 or 4g router mode, which is intended to Just broadcast your 4g router to wireless router mode that is Going to be intended for this use case in which the this TP link device receives internet from an ISP router And then primarily passes on that to other devices And creates a Wi-Fi network of that and the 3 3 4g aspect is only Is only there as a backup So that's number one second thing is If you go into network and then click on internet, there is a internet backup switch now this is all kind of inspired from the Documentation of TP link which is available from the TP link website and this covers all this So go into advanced click on internet then you see internet backup now This is the first one is flipping it flipping the router on its head in the first way and this is flipping the backup on its head So you want if you're you if you're if this is the use case or the set up you're aiming for You want the for the cellular to be the backup on ISP to be primary so enable this switch I Can't think of a reason why you would want it the other way around like cellular being primary and backup on ISP But I'd imagine the vast majority of people switching into wireless wireless router mode Or at least definitely those looking to use this for the the 4g is a backup or going to want to go into this 3 4g backup there And that is mostly it I did have to do one more thing I'm just going to move this guy across now Because I had another writer the ISP writer was also living on the network There was a clash between the IP addresses of the embedded web servers of the TP link writer and my ISP writer They were both on The same address so if you go into network and click on LAN settings if you just Check whatever the default IP address is of the TP link writer I think it's 192 1680.1 And if your ISP writer is also on that address then you're going to want to change The TP link writer just move it to another address on the network So I went for I just moved it to a different IP and you can also enable a second IP I didn't do that because the first one got rid of the problem essentially and That is essentially all that I did now it did take me a few sort of hours to Figure out all these steps, but if you're trying to do this then that should that should save you a bit of time So that's basically what it is and in summary you are wiring your ISP writer Or I have now wired my ISP's writer into the one port Of the TP link cellular router. There is the SIM card in there. There are sim card There is cellular antennas and now there is so now there's 4g and ISP coming into the TP link and The TP link is now in the operation mode of Router, which means that it's going to primarily be acting as a router for ISP connection But because it's got that 4g infrastructure in it It's able to automatically back up to that in the event that the primary drop so that's going to be back up internet and I the way I did it You could do it differently if you go for a higher link higher end TP link router with a bunch of LAN ports You might have enough I personally threw a switch out at the end of that of that little TP link router and Wired all my Ethernet devices my NAS my computer My media center everything now is wired on the local on the one LAN port on the TP link because that LAN port benefits from both the primary and the backup connectivity and Finally, I took down the Wi-Fi network on the ISP router and I put up the Wi-Fi network on the On the TP link router and I did that because I don't see I don't think there would be any point in having Wi-Fi on ISP router because that doesn't have the cellular backup built into it So therefore I didn't see the point in confusing things and running unnecessary extra Wi-Fi network So just to keep things clean on the network I took down the Wi-Fi network on the ISP Put it up on the TP link and now I have a Wi-Fi network in my house as well as an Ethernet network And both of those Will have a combination of ISP connectivity and cellular backup and why is this good because Internet goes down even good ISPs Tend to go down for a while and now when that happens and this has been happening a lot for me Over the past year I would say and we we initially bought another ISP and had two ISPs And that's definitely another way to do backup internet That's why I bought the load balancer because just if I want to do that option But I feel like this is almost a simpler option option and the advantage of using cellular as a backup as opposed to another ISP is that Commonly I found now where I live in Israel There's basically two types of infrastructure. What I found is that the two ISPs tended to go down Simultaneously or quite close to quite close together in time So therefore I thought that doing ISP plus cellular would be a better backup system than than using two ISPs now this Network architecture I've described wouldn't work for Wouldn't work for two ISPs if you wanted to do go the whole shebang I still think this would have been a pretty decent network architecture getting your ISP router plus your 4G router plus a second Second ISP putting all that gear into a load balancing router such as a TP-Link R470T that there is a bunch of different This is a bunch of different load balancing routers on the market And that's actually kind of the the older one is just the one that's available where I live That would be like next level another thing that would be Next level or a simplification on this would be to go for a router that has dual one dual wide area network ports and LTE and I find a couple thanks to thanks to the help of a couple of people on the home networking reddit so you could have That would bring you down to just two routers you'd have your Actually, I'm not sure that would be better necessarily, but it would be little a little bit tidier. You'd have a Router which would have your SIM card plus One ports for let's say your two ISPs, but you still need to plus that You cut down on the 4G router you cut down on one one router because there'd be a SIM card slot in the router So there are different ways to skin a cat and different ways to do backup connectivity in a home network environment I would say that for my I wouldn't say Budget-constrained but some of these high-end writer cut high high end writers like the ones I described with you know Two one ports plus an LTE router cost like six seven hundred dollars And I did not have that kind of money to play around with on this I just wanted something that would basically give me backup connectivity in terms of how much this thing did cost the way I've done it If I can get the right schematic up again Costs associated with this design the TP link was Like $70 this I went for the most basic 4G writer with ethernet and glad I did because if it didn't have ethernet I wouldn't have been able to do this configuration So that was about 70 bucks it's about I'm trying to think in dollars for that for the data sim. I don't know 20 30 dollars a month I think something like that for a data only sim card that lives in the lives in the cellular router the for that's 4G So that's a recurring cost and that's basically it So you're talking about an added cost here of a once-off payment of about let's say 70 100 dollars for a 4G router and 20 to 30 dollars per month and You have now got yourself bought yourself with that extra spend over your Baseline costs for your ISP connection. You've bought yourself Backup internet connectivity that when your eye if and when your ISP goes down The router will switch over and the way I've designed this network here Whatever you have on the network your land devices your wireless Everything will benefit from that failover or should benefit from it and therefore you'll be able to get less internet interruptions And I think if you're running a business from home as I am as my wife is You know, I don't think you need to go for the thousand dollar setups I think if you have the money if you're a you know, 50 person hundred hundred person business in the critical infrastructure sector By all means, I'm sure they they go in for the top-end gear But I think is a basic way basic and affordable way to give yourself backup internet I think that this I'm virtually 100% certain this will pay for itself because even in the last few months. I've been I was on like Podcasts that I had to just abort because my internet dropped and you're trying to like rig up a hotspot and it's very amateur So this thing you don't need to worry about that. There is data. There's cellular data and there's ISP It's in the same router. There's a device. It's going to run all that failover for you And I think it's a pretty cool thing to do So I hope this was useful and if you'd like to get more videos for me Feel free to subscribe to this YouTube channel